Jim Horsfall

@jimhorsfall.bsky.social

A naturalist, conservationist, Yorkshireman, father and more. A slacker who can't sit still. Particularly interested in plants, water beetles, fungi and moths. Prone to spelling mistakes.

I don't get to the coast often, so lots of things I find are new to me. Here on salt marsh in the estuary at Findhorn. Salt-marsh Rush in it's namesake place, Seaside Centaury and Seaside Arrow grass also new to me. I've had to check even common things, as there is often a seaside equivalent.

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I don't know what drew me this little bit of water on Thorne moor today, but closer inspection showed Bladderwort flowers poking up above the water. Below are the 'bladders' that trap small prey to consume.

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I walked straight past this, even though I knew where it was. So had to double back and check. It's Marsh Pea, a rare species in Yorkshire (and scarce in the UK), and was reintroduced after a gap of a couple of hundred of years to Potteric Carr near Doncaster. A happy plant scrambling up a reed.

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I visited a new site today, above the Went, in Wakefield district. Lots of interesting plants, butterflies and birds. But lacking enough management to keep the rare plants in the long term. Also near one of the nature reserves I manage I just need to work out the best way to help the landowner now

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Yesterday I was out looking for Scarce Vapourer moth larvae, visual searching and beating vegetation (to try and dislodge larvae onto the tray). No luck. But I did find a few other things; a sawfly (Strongylogaster multifasciata?), Forked-jaw Nomad bee, and 14-spot Ladybird. Crowle moor, Lincs

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The 2025 report is coming hot on the heels of the '24 report, and should be out in a couple of months. Join @ynuorg.bsky.social and you'll get this, and other annual reports (butterflies & moths, and birds) as well as The Naturalist journal. It's well worth it for any Yorkshire naturalists. 🙂

Yorkshire Naturalists' Union@ynuorg.bsky.social · 3mo ago

The YNU's latest publication, Yorkshire Plants 2024, is now available in the YNU shop. This new annual report from the YNU’s botany section compliments the joint @bcyorkshire.bsky.social annual Butterfly and Moth Report. You can purchase your copy for £5 here 👇 www.ynu.org.uk/join-the-ynu...

Front cover of YNU publication Yorkshire Plants 2024 featuring a bird's-eye primrose

Not my usual haunt this weekend, Phoenix Fest was on (for The Phoenix comic that my children like) and so I was wandering around Oxford. A good weekend was had by all, and I even managed a bit of plant recording @bsbibotany.bsky.social It's nice to see a different patch (both urban and semi-natural)

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At the @ynuorg.bsky.social meeting yesterday, an eminent educator on the topic of invertebrates suggested we need to think differently about how we engage young people in entomology (at least at the start). Meet people where they are (not how we started being interested in insects), was his message

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I've been running a Malaise trap as part of the Bioscan project for a couple of years. They take specimens (invertebrates) and do DNA based magic on them to work out what's in the samples. Unsurprisingly 74% of all individuals were flies (Diptera), but 12% of all individuals were one species!

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Another trip to Valmalenco over. Early spring turned out well, very warm for the time of year. More Spring Cinquefoil here that I've ever seen in Yorkshire. And despite looking at loads of patches of Spring Sedge no Rare Spring Sedge seen. Plenty more to find on future trips (to see family honest)

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I know that things aren't the same abroad, but I can't help get a little excited when I see something that would be rare or unusual back home. Spring Cinquefoil is a sign of a really good grassland in Yorkshire. This was by a roundabout and car park in Valmalenco, Italy.

Yellow flowered plant, with hairy stems and leaves amongst moss and bare ground.

Easter isn't the best time for spring flowers (we came to visit family), but some early spring flowers around. Patches are still snow covered or ground frozen, other bits are warmer. Alpine Squill and Spring Crocus are common, other things like Oxlip are either less frequent or only just in flower

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The 4 young Highland cattle that were on Seven Arches Carr have moved this morning to Loversall Pool, at Potteric Carr. They are investigating their surroundings, and eating the grassland around the edges, they'll get to the reedbed and fen when the tasty stuff is finished.